Easily repair a broken section of chain or join chain lengths together with mr. Chain 2in plastic master links. Made of lightweight yet strong high-density polyethylene, this two-piece chain extender links together mr. Chain 2in plastic chains sold separately to create a durable, permanent connection. These chain lengtheners are ideal for replacing broken chain links, connecting multiple chains together, attaching a chain to a post or stanchion, or hanging items like signs from your chain. Designed for long-lasting outdoor use, these master links are designed to snap securely in place and are made with uv-resistant plastic. features: 2in plastic master chain links are ideal for repairing or joining chains designed for use with mr. Chain 2in plastic chains sold separately rust- and uv-resistant plastic; made of lightweight, strong, and durable high-density polyethylene package includes 10 two-piece chain links or individually; links are 2in in diameter